Review all CMS logins and determine which users need ODBC and JDBC access.
You can view user permissions information in CMS Supervisor or by running the cms command.
Make a note of which CMS logins need to be in the dbaccess group.
You can run cat /etc/group | grep dbaccess to determine which users are already in the dbaccess group. For example, if the odbcusr1 and odbcusr2 are already in the group, a result such as the following is displayed: